About Preston Lake Police Frequencies
- Trunked radio systems that carry law-enforcement traffic here: Allied Radio Matrix for Emergency Response (ARMER): 7 talkgroups. A trunking scanner is required, and it must support the system type shown.
- To follow a trunked system, program a control channel first. For Preston Lake, start with the Hector site of Allied Radio Matrix for Emergency Response (ARMER), about 10 miles away. Its control channels: 852.3875, 853.425 MHz.
- 3 listed entries are marked encrypted. No scanner can decode encrypted audio.
Renville County channels that also cover Preston Lake
Allied Radio Matrix for Emergency Response (ARMER)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Renville County Sheriff | Law Dispatch | 29500 | 733c | D |
| Renville County Sheriff | Emergency Trigger | 29508 | 7344 | D |
| Renville County Sheriff | Jail | 29504 | 7340 | D |
| Renville County Sheriff | County Jail Operations | 29506 | 7342 | D |
3 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Renville County Sheriff | County Law Main | 29503 | 733f | D Encrypted |
| Renville County Sheriff | Renville Law Operations | 29501 | 733d | D Encrypted |
| Renville County Sheriff | Renville Law Operations | 29502 | 733e | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Preston Lake.
Hector · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 2 · Site 86 (hex 56) · about 10 mi away
Control 852.3875, 853.425
Voice 851.425, 851.75, 852.8875, 853.9125
Swift County · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 4 · Site 32 (hex 20) · about 11 mi away
Control 854.9875
Gibbon · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 3 · Site 26 (hex 1A) · about 12 mi away
Control 852.3125, 852.6
Voice 851.625, 851.95, 853.0625, 853.5625
What do these numbers mean?
- Control channel
- The frequency your scanner listens to first. It tells the scanner where each voice call is happening, so program it before anything else.
- Voice
- The other frequencies the site uses for calls. A trunking scanner follows them automatically once it has the control channel.
- Site
- One tower location of the system. Scanners show the number in decimal or hex, so both are listed.
- RFSS (Radio Frequency Sub-System)
- A group of sites run by the same controller. Large Project 25 systems can have several.
- NAC (Network Access Code)
- A hex code the site transmits. Your scanner can use it to ignore other systems on the same frequency.
- Talkgroup
- A virtual channel on a trunked system, such as one agency’s dispatch. Programming uses the decimal or hex number, depending on your scanner.